welcome to cbs "this morning." david petraeus is minutes away from telling congress what the cia was doing in benghazi. >> breaking news, air raid sirens and explosion, violence escalates in the middle east. israel inches closer to sending ground forces into gaza. we're at the border. >> nfl commissioner roger goodell is in studio 57 today to talk concussions, expansion and why your kids should still play football. >> but we begin this morning with today's "eye opener," your world in 90 seconds. >>> we lost fouramericans. >> are there still questions out there? you bet. we're going to continue to work to get those answers. >> former cia director dave petraeus heads to capitol hill. >> he'll testify behind closed doors about that deadly september 11th attack on benghazi. >> cia announce it's launching an investigation into petraeus' conduct ile he was still in charge of the agency. >> petraeus says no classified information was shared. >> fire was exchanged between israel and hamas. >> this battle is escalating. >>